Science News - The Hindu

Chandrayaan performs evasive manoeuvre to avoid collision with NASA’s orbiter

It is common for satellites in Earth Orbit to undergo CAM to mitigate collision risk due to space objects including space debris and operational spacecraft

The first ever photo of a black hole, taken using a global network of telescopes, conducted by the Event Horizon Telescope (EHT) project, to gain insight into celestial objects with gravitational fields so strong no matter or light can escape. File

Was it really a black hole that the EHT imaged in 2019?

Shubashree Desikan

Routes of infection: Though primarily mosquito-borne, Zika virus is transmitted from infected mother to fetus during pregnancy, through blood and other body floods and organ translation as well as sexual contact.

Zika virus outbreaks, an opportunity to improve healthcare in India

Chandrakant Lahariya The lab capacity for COVID-19, developed in the last 18 months, needs to be optimally used to conduct testing for other emerging infections

Speaking of Science

Fighting mosquito-borne diseases: work in progress

More tools are available to prevent some diseases caused by mosquitoes

Editor's Pick

Two sides: The biggest argument against booster doses is that of vaccine equity, since even a single dose of a vaccine protects against hospitalisation and death.

Decision on booster doses must be evidence-based

Lancelot Pinto India-based data are needed that reveal whether the vaccines continue to protect against hospitalisations and death

Larger role: Insulin, commonly associated with regulation of glucose metabolism, also plays a part in tissue growth and maintenance.

New light on how insulin signalling affects tissue health

Shubashree Desikan Inputs from the fasted insulin levels created a memory that improved the fed insulin inputs, finds a study

After relying on other countries to launch its satellites since the early 1990s, South Korea is now trying to become the 10th nation to send a satellite into space with its own technology.

South Korea unsuccessfully test launches 1st domestically made space rocket

AP President Moon Jae-in, who observed the launch on-site, still described the test as an “excellent accomplishment”

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An experimental COVID-19 treatment pill called molnupiravir being developed by Merck & Co. Inc. and Ridgeback Biotherapeutics LP, is seen in this undated handout photo released by Merck & Co. Inc.

Watch | New pills to treat COVID-19

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Chandrayaan performs evasive manoeuvre to avoid collision with NASA’s orbiter

Was it really a black hole that the EHT imaged in 2019?

Question Corner | Did land plants evolve gradually and continuously?

Zika virus outbreaks, an opportunity to improve healthcare in India

Speaking of Science Science

Fighting mosquito-borne diseases: work in progress

Longest partial lunar eclipse in 580 years on Nov 19

How India's fishing industry could be powered by the sun

The country's fishing industry is seeing mass adoption of solar tech, from innovative boat design to fisheries

Science Quiz: On valence electrons, nephology and more

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

COVID-19 pandemic generated eight million tonnes of plastic waste: Study

The research found that a significant portion of this ocean plastic debris is expected to make its way onto either beaches or the seabed within three to four years.

Watch | New pills to treat COVID-19

A video explainer on US pharma giants, Merck and Pfizer's anti-COVID pills

SpaceX returns four astronauts to Earth, ending 200-day flight

NASA astronauts Shane Kimbrough and Megan McArthur, Japan's Akihiko Hoshide and France's Thomas Pesquet should’ve been back on the morning of November 8, but high wind in the recovery zone delayed their return

Google honours biologist Kamal Ranadive with doodle

Indian biologist and Padma Bhushan awardee Kamal Ranadive has been featured in Google doodle on November 8, 2021, on her 104th birthday. The doodle by

India at COP26 says its solar energy capacity increased 17 times in 7 years; now at 45 GW

All the Parties commended India’s efforts on the BUR and its climate actions, including recent announcements of new measures.

Explained | Where does India stand on methane emissions?

Why has it stayed away from both the methane pledge and the forest conservation declaration at Glasgow?

Friendly, forceful, brisk and bold

Do animals have personalities?Among humans, each individual has a unique personality, but so far, scientists have not found or ascribed personality

‘Pandemic far from over’, even as global toll crosses five million

Even with large-scale vaccination in many countries, the death rate is witnessing a sudden rise now in Europe and Southeast Asia

Countries’ pledges improve odds of thwarting global temperature rise by a third

The findings, while optimistic, come amidst the deliberations underway at Glasgow

Sunday Quiz: women and their inventions

Science makes people reach selflessly for truth and objectivity: Lise Meitner

Pfizer says COVID-19 pill cut hospital, death risk by 90%

Pfizer’s drug is part of a decades-old family of antiviral drugs known as protease inhibitors.

Climate risks remain even if world limits warming to 1.5°C: UNEP report

The report found that the costs of adaptation are likely in the higher end of an estimated $140-300 billion per year by 2030 and $280-500 billion per year by 2050 for developing countries only.

Sun lights up high-latitude countries in ‘a Solar Deepavali’

Scientists from CESSI, IISER, Kolkata, accurately predicted the event using indigenously developed models and data from NASA’s observatories

Physicists predict a Solar Deepavali this year

A solar flare that occurred on the Sun has triggered a magnetic storm which scientists predict will arrive at the Earth in the early hours of November 4

Covaxin gets shelf life extension up to 12 months

The extension was approved by the Central Drugs Standard Control Organisation

Watch | Polar bears return to Pacific Arctic for the first time in 20 years

A video on the cooling of the Arctic region resulting in the return of the marine mammal.

NASA orders rare medical delay in launch of SpaceX mission into space station

Central to the race to peer into distant worlds is the Giant Magellan Telescope (GMT), a $1.8 billion complex being built at the Las Campanas observatory

Indonesian researchers breed 'good' mosquitoes to combat dengue

The trial results, published by the New England Journal of Medicine in June, showed that deploying mosquitoes with Wolbachia reduced dengue cases by as much as 77% and hospitalisations by up to 86%

Indian farming practices: Learning from elsewhere in the world

Strip cropping, as seen in the U.S., is when wheat is grown along with corn and soyabean, in the same farm in an alternative manner

Scientists find a mineral seen in the depths of the Earth in a meteorite

The study by IIT Kharagpur scientists adds a clue to the puzzle of the formation of the Moon

On fixing priorities for vaccinating children

Which high-risk sub-group and age sub-group to start with has to be determined by reviewing hospitalisation and mortality data from India: Chandrakant Lahariya

Jupiter's monster storm not just wide but surprisingly deep

The Great Red Spot is probably the tallest Jovian storm measured so far with Juno's microwave and gravity-mapping instruments, the mission's lead scientist said.

Explained | Why is India facing bouts of extreme weather?

Did Kerala and Uttarakhand receive incessant rain in October due to climate change?

Question Corner | Was the evolution of the Earth’s atmosphere affected by asteroid, comet strikes?

Now, a study by U.S. researchers analysed remnants of ancient asteroids and modelled the effects of their collisions to show that the strikes took place more often than previously thought.

New light on how insulin signalling affects tissue health

Inputs from the fasted insulin levels created a memory that improved the fed insulin inputs, finds a study

More studies show the superiority of hybrid immunity

Differences between the memory B cells triggered by infection, vaccination might also underlie the heightened responses of hybrid immunity

Decision on booster doses must be evidence-based

India-based data are needed that reveal whether the vaccines continue to protect against hospitalisations and death

India-made spray linked to rare illness in U.S.

Deadly bacterium found in spray used by victims.

Guidelines for non-transgenic gene editing techniques pending since January 2020

Gene editing helps create resilient, high-yield rice without foreign DNA: Indian Agricultural Research Institute

South Korea unsuccessfully test launches 1st domestically made space rocket

President Moon Jae-in, who observed the launch on-site, still described the test as an “excellent accomplishment”

Science Quiz: On 'black tigers', eye of the cyclone and more

Correct answers are highlighted in green. Click on the correct answer for further reading on the topic.

IISc team develops novel computational model to predict ‘change blindness’

Insights can be applied to diagnosing neurodevelopmental disorders like autism, improving road safety and enhancing the reliability of eyewitness testimonies

China says moon rocks offer new clues to volcanic activity

Samples indicate volcanic activity was still occurring on the moon as recently as 2 billion years ago.

Reports of distressed pittas fly in thick and fast

As the number of such cases will increase in Chennai in the days to come, animal rescuers start focussing on letting people know how not to kill the bird with kindness

Coronavirus less likely to develop resistance to molnupiravir: Gagandeep Kang

There are some concerns about how early and how mild the disease has to be for the drug to work, says Dr. Kang.

IIT Kanpur team identifies a novel target to treat prostate cancer

In mice, BET inhibitors used alone or in combination with anti-androgen drugs was found effective

Zeolite oxygen concentrators: chemistry in three dimensions

At the heart of this technology are synthetic frameworks of silica and alumina with nanometer-sized pores that are rigid and inflexible

Question corner | Did Venus ever have oceans?

While previous studies have suggested that Venus may have been a much more hospitable place in the past, with its own liquid water oceans, a recent

NASA's asteroid hunter Lucy soars into sky with diamonds

Lucy’s $981 million mission is the first to aim for Jupiter’s so-called Trojan entourage: thousands — if not millions — of asteroids that share the gas giant’s expansive orbit around the sun.

China's Shenzhou-13 spacecraft docks for 6-month mission

The crew will do three spacewalks to install equipment in preparation for expanding the station; assess living conditions in the Tianhe module and conduct experiments in space medicine and other fields

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Raghav Juyal. Screengrab: Twitter/@TheRaghav_Juyal

17K | Reality show host makes 'racist' comments on Assam contestant, sparks outrage

File photo. Stand-up comedian-actor Vir Das uploaded a six-minute clip of the video from his monologue, "I come from two Indias", on YouTube, and later issued a statement clarifying that his remarks weren't intended to insult the country

11K | ‘Two Indias’ monologue by comedian Vir Das sparks sharp debate, police complaints

Nawab Malik. File

11K | Malik releases WhatsApp chat between Gosavi and informer

The Bench was hearing a writ petition alleging that rituals were not being performed as per traditions at the famous Tirumala Tirupati temple. File Image.

10K | Constitutional courts can’t interfere with temple rituals: Supreme Court

Mega deal: India has signed a $5.43-billion agreement with Russia for S-400 Triumf regiments.

9K | Explained | S-400 Triumf long-range air defence system

8K | Exception to the rule: On extensions to heads of CBI, ED

Extremely heavy rain, measuring above 20.4 cm, is likely in one or two places.

8K | Very heavy spell of rain forecast for Chennai, surrounding districts on November 17, 18

A view of the Chennai airport. Photo used for representation purpose only.

7K | India resumes quarantine-free entry to foreign travellers from 99 countries

Prime Minister Narendra Modi virtually addressing the 82nd All-India Presiding Officers’ Conference held at the Himachal Pradesh Assembly on Wednesday, November 17, 2021.

7K | Duty should be the only mantra, says Narendra Modi